Like Download 9.67 MB Cogs in HDR 5994 x 3963 pixels Aspect ratio 1998:1321 NIKON D610 50 mm f/5.0 1/125 s ISO 250 Online since: 8 October 2018 Taken: 7 October 2018 CC0 / Public Domain old rusty metal machine mechanism gear industrial wheel industry part mechanical technology steel cog machinery equipment rust background engine iron cogwheel